NEW YORK, Oct. 1 - For the last decade, genomics-technology cheerleaders have promised that dirt-cheap, idiot-proof DNA sequencing is right around the corner. Laborious and expensive parts of traditional capillary-based sequencing will soon be obsolete, they say, and a new era will bring better methods, faster machines, and reads so cheap that it'll be possible, just for kicks, to knock out a draft of Uncle Larry in one afternoon.